Hepatic CMV-IE expression and distribution further defines the aetiological and prognostic subtypes of biliary atresia

jpedsurg.org

Cytomegalovirus (CMV) is involved in the pathogenesis and progression of biliary atresia (BA). The immediate-early (IE) protein, the earliest and abundantly expressed viral protein following CMV infection, serves as an indicator of active viral replication when upregulated. This study aimed to investigate the expression and distribution of CMV-IE in liver tissues of BA and to evaluate their impact on postoperative prognosis following Kasai portoenterostomy (KPE).

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Article · Feb 2026 · 1 min read

In brief

This study examines CMV immediate-early protein expression in liver tissue from biliary atresia patients to identify viral replication patterns that may predict outcomes after Kasai portoenterostomy. Findings could help stratify BA patients by aetiology and prognosis based on hepatic CMV-IE distribution.

CMV-IE protein expression in liver tissue indicates active viral replication and may identify BA patients with ongoing CMV involvement.
CMV-IE distribution patterns in hepatic tissue can stratify BA into aetiological subtypes with distinct pathogenic mechanisms.
Hepatic CMV-IE levels correlate with post-KPE outcomes, offering prognostic value for surgical planning and follow-up intensity.
CMV-IE assessment provides objective biomarker data beyond serology, enabling more precise patient stratification in BA management.

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